Feed-water heater.



Patented Jun 4, l90l.

J. W. CASEY. FEED WATER HEA TEB- (Application Mod Oct. 29, 1900.)

(No Model.)

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States Patent Urrrcn.

JOHN T. CASEY, OF SISTERSVILLE, EST VIRGINIA.

FEEB WATER H EATER.

"'PECIFIGATION forming part of Letters Patent No. 675,553, dated June 4,1901. Application filed October 29,1900. Serial No. $1,700. (No model.)

To ctZZ whom, it may concern: a

Be it known that I, JOHN WV. CASEY, a citizen of the United States,residing at Sistersville, in the county of Tyler and State of \VestVirginia, have invented certain new and useful Improvements inFeed-W'ater Heaters; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to feed water heaters which are located in thefurnace of steam-boilers, and has for its objects the better circulationof the water through the heater, whether the feed-water is being fed tothe boiler or cut off, to collecting the sediment after the water isheated on its way to the boiler, and also to provide means for feedingthe water to the boiler direct should occasion require the cutting outof the heater.

Referring to the drawings accompanying this specification, Figure 1 is aside elevation of a locomotive-boiler, showing the pipe connections fromthe injector to the heater and to the boiler direct and from the heaterto the mud-drum and boiler. Fig. 2 is a section through the furnace andheater, taken on line 1 2 of Fig. 1; and Fig. 8 is a similar viewshowing a modification of the arrangement of the heater in the furnace.

It will be understood that all the pipe connections, the injector, andthe mud-druin are duplicated on the other side of the boiler and thatthe drawings make a sufficient showing to fully illustrate theinvention.

In the drawings, A. is the boiler, and B the furnace, in which islocated crosswise the heater 0.

The heater is a vessel of any form, but shown in this instancecylindrical, and is provided with heads D D. The heater is dividedhorizontally nearly its whole length by plates (Z (Z, each of whichextends from the heads to near the center, where an opening 6 is formed.To each head below the plates (Z (Z is attached the feed-water pipes E Efrom the injectors. Also to each head above the plates is attached thedischarge-pipes F F, leading to the mud-drum and boiler.

Attached to the feed-water pipes E E is the circulating-pipe ll,provided with the valves 7t 7t and leading down to the waterspace of thefurnace or fire-box.

I is the injector, having the usual steam and water supply connectingpipes 2'11 and the discharge '11. This discharge leads into aT-coupling, from which the pipe E leads to the bottom of the healer.Also from the same coupling leads the pipe L direct to the boiler. Thepipes E and L are provided with valves m and Z, respectively. Thedischarge-pipe F F from the heater leads into the mud-drum G, which isprovided with the blow-off pipe g and valve g, the latter of which maybe operated from the cab in any well-known manner. From the mud-drumleads the pipe F to the boiler. This pipe is provided with a valve f.The pipes F andL are connected to a T-coupling, which is outside theusual check -valve coupling to the boiler. (Not shown.)

The pipes leading to and from the heater, as shown in Fig. 1, passthrough the fire-box to the heater, while in the modification shown inFig. 3 an opening the size of the heater is made in each side of thefirebox and through which the heater extends and is supported by thesame. In other respects the heater and its connections are the same.

In operation the Valves f, h, and m are opened and valve l is closed.The injector is started, when the water will pass through the pipe E tothe bottom of the heater under the plates d d to the center of theheater, when it passes through the opening 6 and back over the platesand out through the pipes F into the mud-dru in G, which is ofsufficient size to cause a slow current of Water, thereby permitting thesediment in the now heated water to settle in the mud-drum, where it canbe blown off at pleasure. The now purified Water passes through the pipeF to the boiler.

Should the injector be stopped for any reason, the circulating-pipewould prevent the water from being converted into steam, and therebyburning the heater, since as the water is heated it passes up throughthe feed pipe into the boiler, and at the same time the heater issupplied with water from the boiler through the circulating-pipe.

While the feed-water is passing into the heater water from the boilerthrough the circulating-pipe also passes in with it. Therefore there iscirculation of the water in the boiler as long as the heater is not cutout.

Should the heater become defective from long use or other reasons, thesame can be cut out by closing valves h, f, and m and opening valve Z.This would cause the feed-water from the injector to pass through thepipe L direct to the boiler.

What I claim is-- 1. In a feed-water heater, the combination of afurnace with a water-heater therein,which is provided with horizontaldivision-plates which leave an opening in the center of the heater,water-inlet pipes entering each head below said plates, and water-outletpipes leading from each head above said plates, substantially asdescribed.

2. In a feed-water heater, the combination of a furnace with awater-heater therein,which is provided with horizontal division-plateswhich leave an opening in the center of the heater, water-inlet pipesentering each head below said plates, water-outlet pipes leading fromeach head above said plates, and circulating-pipes connected to thewater-inlet pipe and lower water-space of the boiler, substantially asdescribed.

8. In a feed-water heater, the combination of a furnace with awater-heater therein, feedwater pipes leading to the same,dischargepipes leadingfrom the same, and a mud-drum through which thewater passes before entering the boiler, and means for feeding the waterdirect to the boiler or through the muddrum, substantially as described.

4. In a feed-water heater, the combination of a furnace with awater-heater therein, feedwater pipes leading from the injector to theheater, discharge pipes leading from the heater to the boiler,discharge-pipes leading directly from injector to boiler, and valves insaid pipes by which the water may be directed through the heater ordirect to the boiler, sub stantially as described.

5. In a feed-water heater, the combination of a furnace with awater-heater therein provided with horizontal division-plates leadingfrom the heads to near the middle of said heater, and outlet and inletpipes respectively above and below said plates, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN w. CASEY".

Witnesses:

MAX ROSENBAUM, O. M. LowERs.

